[NUTCH-1984] Eliminate unnecessary dependencies

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Auto Closed
• Affects Version/s: 2.3
• Fix Version/s: 2.5
• Assignee: Unassigned
• Reporter: Marko Asplund
• Created: 10/Apr/15 10:45
• Updated: 22/Nov/19 15:47
• Resolved: 22/Nov/19 15:47

Description

When I build (ant runtime) Nutch from 2.x branch some unnecessary dependencies seem to get included in lib (runtime/local/lib).

the scope of dependencies should be minimized and e.g. test-only dependencies should not be included in runtime lib. e.g. the following may not be actually required at runtime:

• junit-4.11.jar
• *jetty*
• hsqldb-2.2.8.jar
• h2-1.4.180.jar

another issue is that multiple versions get included in lib for some libraries. these cases should be reviewed and the redundant versions eliminated. in some cases including a single version may suffice. here's some examples where multiple versions get included:

• stax-api-1.0-2.jar, stax-api-1.0.1.jar
• commons-httpclient-3.0.1.jar, httpclient-4.2.6.jar
• commons-collections-3.2.1.jar, commons-collections4-4.0.jar
• commons-lang-2.6.jar, commons-lang3-3.1.jar
• servlet-api-2.5-20081211.jar, servlet-api-2.5-6.1.14.jar

does Nutch really require oro-2.0.8.jar? it seems to compile without it.